Sylvania



FALLS & V HAYES.

Cooking Range.

Patented April 13, 1869.

mlm

GMM.

NA PETERS, FHOT0-UTHDGRLPNER. WASH @anni itite. ag? e tant' FRANCIS FALLS AND JOHN P. HAYES, OF PHILADELPHIA, PENN- SYLVANIA, ASSIGNORS'TO FRANCIS FALLS.

Letters Patent No. 88,862, dated Apri z 13, lsemamedamz october 13, 186s.

COOKING-RANGE.

` The Schedule referred to ln these Letters Patent and making part of the same.

To all whom itmay concern land exact description thereof, reference being had to the accompanying drawings, and to the letters of ref' erence marked thereon.

The nature of our invention consists in the combination and arrangement of vertical plates with vertical air-spaces atthe sides of the tire-chamber of a cookingrange, in such a manner as to incline the air' to the sides of the fire-chamber, and also to increase the radiating surface, and give an impetus to the forward motion of the heated air,causing a' free and rapid current to the hot-air space in the rear of the vfire-chamber, whence it passes into a ue or ues, to heat the building.

In the accompanying drawings, which make a part of this specification- Figure 1 is a reverse plan, or view from beneath the improved range.

Figure 2 is a vertical section, at the line a: x, of

Like letters in both figures indicate the same parts. A'is the dre-chamber. B is a hot-air space in the rear of the same. C and G' are vertical .spaces between the dre-chamber and the ovens D D.

There are converging plates E which extend vertically fr'om the vertical division plates F, at the bottom of the range to the plate G, on `a line with the top of the ovens.

There is a small opening, a, between the front edge' of each of the inner diverging plates E and the front plate H, from the top to the bottom of the plate, through which a thin volume of; air is admitted into the widened space,'a.

The front edge of the outer plates E, or ones next the ovens D, are brought into close contact with the front plate H, to prevent any ow of cold air against I the ovens.

The outer plates E are so arranged as to bring their inner edges at a suitable distance from the same edges of the inner plates, as to form the trapezoidal open ings b b, for the passage of cold air which flows through the` passages I I, from beneath the range.

The operation is as follows:

The air 'which passes through the openings a into the widened spaces a', at the sides of the fire-chamber A, is suddenly expanded as it becomes heated by thev radiation from the latter, and as it enters the enlarged spaces C and C', as its elastic force has been greatly decreased inpcousequence of its expansion, it yields to the vastly superior elastic force of the cold air which passes through the openings b, so as to give great facility to the draught through the spaces G and C'.

After the cold air passes into said spaces() and O', through the openings b, it becomes thoroughly mixed with the air that has passed through the widened spaces a', and the whole volume of air, as it passes through the former, is heated by radiation from the fire-chamber A.

The heat of the air as it flows fromA the spaces O and C', is increased as itows into the hot-air space B, at the back of theire-chamber, by radiation from the latter.

From said hot-air space the heated air iiows through the opening K, in the back plate L, into a iiue or flues, by which it is conveyed through the building, for warming the same.

Thus free and rapid currents of air are caused to pass through the spaces a' and O and C', which are heated by radiation from the fire-chamber A, for warming the building, while a suitable amount of heat passes from the said chamber .over and around the ovens, in the usual mannerfor cooking-operations.

The temperature of the air in the spaces O and O may be increased by extending the outside plates E further into said spaces, so as to deflect the air as it passes through the openings b, upon the plate A of the fire-chamber A. An example is given in space C.

What we claim as our invention, and desire to secure by Letters Patent, is-

The combination of the converging plates E with the spaces G and O', the said plates being arranged audoperatiug in relation to the lire-chamber A, vertical spaces O and' O', and hot-air space B, substantially in the manner above described and for the purpose specified.

In testimony that the above is our invention, we have hereunto set our hands and afxed our seals, this 2d day of July, 1868. l

FRANCIS FALLS. [11. s.] JOHN P. HAYES. [1.. s.] Witnesses:

JOHN GoRRoLL, JACOB ScHANDnm. 

